IROC versus Duck

[concentric]

I've seen the ubiquituous chart showing the down-force (easier to type, leave the issue alone, PRETTY PLEASE FOR THE LOVE OF GOD) effects of the duck, carerra, and turbo tails... Does anyone have any numbers comparing the IROC to the ducktail? I love the look of the IROC, just concerned with it's functionality.

Anyone recommend a good maker for the IROC as well?

Jason

[Bill Verburg]

1 & 2

[Bill Verburg]

In race trim @ 152mph w/ lowered cars w/ deep efficient front dams the duck will have ~126# of lift in similar trim an IROC will have ~83# of lift. The actual amount of lift varies somewhat depending on front dam, rake and lowering among other factors.

[concentric]

Originally posted by Bill Verburg
In race trim @ 152mph w/ lowered cars w/ deep efficient front dams the duck will have ~126# of lift in similar trim an IROC will have ~83# of lift. The actual amount of lift varies somewhat depending on front dam, rake and lowering among other factors.

Thanks, Bill.
Much appreciated.

Jason